Filter module and process for manufacture of same

US8220641B2 · kind B2 · utility

Assignee

• Pall Corporation · US

Inventors

• Wolfgang Diemer · Schwäbisch Gmünd, DE
• Martin Zeiler · Schwäbisch Gmünd, DE

Key dates

• Filing date: Mar 24, 2011
• Grant date: Jul 17, 2012
• Expiry date: Mar 24, 2031

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01D29/237
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A filter module comprises a body of wound layers of a sheet material, said body having inner and outer peripheral surfaces, a winding axis and a passage along the winding axis and in fluid communication with the inner peripheral surface, the sheet material having openings forming two channel types from the inner to the outer peripheral surfaces, a first channel type open at the outer peripheral surface and closed adjacent to the inner peripheral surface, a second channel type open at the inner peripheral surface, in fluid communication with the passage and closed adjacent to the outer peripheral surface, the two channel types separated from each other by sheet material, one channel type being inlet channels communicating with an inlet, the other channel type being outlet channels communicating with an outlet, the edge of the inlet channel openings having a thickness less than the thickness remote from those openings.